AIIMS Physics Practice Tests (Electromagnetic Induction)

1. There will be total (10) MCQ in this test. 2. Please keep a pen and paper ready for rough work but keep your books away. 3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number. 4. No negative marking for incorrect choice. 5. Please click on “Finish the Test” when you want to exit. 6. All the best – Happy Studying.

1. In a coil of self inductance of 5 henry, the rate of change of current is 2 A/s, the emf induced in the coil is:

5V

-5V

-10V

10V

Question 1 of 10

2. According to Lenz’s law there is a conversation of:

Momentum

Collision

Voltage

Energy

Question 2 of 10

3. Turn ratio in a step up transformer is 1:2, if a Leclanche cell of 1.5 V is connected across the input then the voltage across the output will be:

0.1 V

1.5 V

0.75 V

Zero

Question 3 of 10

4.

8 H

4 H

3 H

2 H

Question 4 of 10

5. A bar of magnetic substance is places in a magnetic field with its length making an angle of 30° with the direction of the magnetic field. How will the bar behave?

It will remain as before

It will align itself perpendicular to the magnetic field

It will align itself parallel to the magnetic field

Its behaviour cannot be predicted

Question 5 of 10

6.

T1 < T2

T1 > T2

T1 = T2

T2 = ∞ , T1 = 0

Question 6 of 10

7.

Directions:Statement of assertion (A) is followed by a statement of reason (R). (1) If both assertion and reason are true and the reason is the correct explanation of the assertion, then mark 1. (2) If both assertion and reason are true but the reason is not the correct explanation of the assertion, then mark 2. (3) If assertion is true statement but reason is false, then mark 3. (4) If both assertion and reason are false statements then marl 4.

Hide DirectionsAssertion: The possibility of an electric bulb fusing is higher at the time of switching ON and OFF.Reason: Inductive effects produce a surge at the time of switch-OFF and switch-ON.

1

2

3

4

Question 7 of 10

8. A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointing in the same direction: